s=float(input("成绩为："))
if s>0 and s<100:
    if s<60 :
        print("人如机")
    elif s<75 :
         print("菜")
    elif s<90 :
        print("一般")
    else:
        print("ez")
else:
    print("输入错误")


n=["zhangsan","lisi","wangwu"]
for ns in n:
    print(ns)


t=float(input("shijian"))
s=25
v=s/t
print(v)

m_n='chen'
while True:
    name=input("输入姓名:")
    if name==m_n:
        print(f"nihao,{name}")
        break
    elif name=='q':
        break
    else:
        print("cai jiu duo lian")







